Albert matjrer



wif/W Patented Sept. 23, 1919.

LATCH, APPucAnon men Avn. 23. |919.

lll UNIL A. MAURER AND F. J. VON KAENTZEI..

25T /f /sff/vr a w/ ATTORNEYS UNITED STATES PATENT OFFICE.

ALBERT MAURER, OF BROOKLYN, AND FREDERICK J. VON KAENTZEL, 0F NEW YORK, N. Y.

LATCH.

Specification of Letters Patent.

Patented Sept. 23, 1919.

T o all whom t 'may concer/ri:

Be it known that we, ALBERT MAUEER and FREDERICK J voN KAENTzEL, citizens of the United States, and residents of the city of New York, borough of Brooklyn, in the county of Kings and State of New York, and borough of Manhattan, in the count)y and State of New York, respectively, have invented a new and Improved Latch, of which the following is a description.

. Our invention relates to a latch or lock and more particularly to a latch or lock adapted for use on lockers, cupboards, and the like. v The device is of the ltype in which a casing adapted to be secured to the door has a manually slidable latch bolt adapted to engage in a keeper applied to the frame or jamb. The slide bolt and the relatively fixed keeper have members adapted to be brought into register for receiving a padlock or the like for positively locking the door.

*The invention has for its object to provide a latch or lock of the type indicated `and improved in various particulars with respect to simplicity and durability of the parts and with regard to the facility with which the lock may be manipulated either for relying on the latch bolt alone and its engagement with the keeper orto bring the parts to positions for receiving the padlock.

i Reference is to be had to the accompanying drawings forming a part of this specification, it being understood that the drawings are merely illustrative of practical examples of the invention.

Figure 1 is a face view of a latch embodying our invention in one form;

Fig. 2 is a horizontal section on the line 22, Fig. 1;

Fig. 3 is a longitudinal section at right angles to Fig. 2 as indicated by the line 3 3, Fig. 2;

Fig. 4 is a Cross section on the line 4 4, Fig. l;

Fig. 5 is a longitudinal section corresponding generally with Fig. 2 but illustrating another form of the invention in which the member on the bolt adapted to receive a padlock is swingable on the bolt instead of being a rigid part thereof, the view showing the parts latched but not in position to receive a padlock; I

Fig. 6 is a view similar' to Fig. 5 but with the swingable element of the .latch bolt brought into register with the xed 1ne1n bers on the keeper for receiving the padlock;

Fig. 7 is a horizontal section in a plane indicated by the line 7-7, Fig. 5;

Fig. 8 is a detail in cross section on the line 8-8, Fig. 6.

Referring first to the forms illustrated in Figs. 1 to 4, a suitable housing or casing 10 is adapted to be secured to a door vA of a cupboard, locker, or the like, there being indicated screws 11, Figs. l and 3, and the numeral 12 indicates a keeper adapted to be secured in fixed position on the jamb B by screws 13 or equivalent fastening means. In the casing 10 is manually slidablc a latch bolt 14: which has a forwardly lprojecting lug or ear 15 slidable with the sliding of the bolt in the slot 16 in the front of casing 10, said keeper having a. registering slot 1Gb for receiving the locking ear 15. Obviously, a forward sliding of the bolt 11 to engage the keeper 12 will cause the door to be latched and by withdrawing the bolt from the keeper the door may be swung open. lVhen the bolt is in latching engagement with the keeper 12 the lug 14 is accommodated between and in register with relatively fixed locking ears 17 on the keeper 12, the element l5 having a hole 18 transversely therethrough and the members 17 having" registering holes 19 so that al padlock may be passed through the several elements 15, 17 to prevent Withdrawal of the latch bolt and thereby positively locking the door.

The longitudinal movement of the bolt 14 in itsy casing 10 is limited by` apin 20 on the bolt and permitted limited movement in the slot 2l, which preferably is in the back or inner side of the casing to be thus concealed.

In order to cause the latch bolt 14 to maintain its position when projected into the keeper or withdrawn into the casing l0, we provide a spring catch 22 in the form of a plate spring secured at one end as at 23 to the interior of the casing at a depression 2l therein, the depression permitting the spring to lie flush with the inner wall of the casing 10 to which the spring is secured. The free end of the spring has a stud or protuberance 25 which is adapted to be received in either of two notches 26, 27 in the bolt 14 to give suflicient holding action on the bolt to cause the latter to maintain its position unless positively moved.

In the form shown in Figs. 5 to r8, the

casing .102 is secured by screws 11al or the like and similarly the keeper 12a correspending with the keeper 12, is-securedby' screws 13a or the like. instead of having a rigid locking member 15, has a member lswingable on the latch bolt"1la,'""sa`id member' having a lshank 15b pivoted as at 15c to said bolt: ',Themember 15a and its shank are accommodated in the l slot lc'orresponding with" the slot'l.V To use the device as` a latch, .the "boltlil is simply slid forwardly to the position shown 111` Fig." 5y and suflicientlygenteredin the keeper 12a` to cause the door 'tobe latched; In,` this position of the bolt and itslocking memberl 15?,r the latter isA not inregister with the Afixed-locking ears-17a on'the keeper 12a;V When, however, itis desired tofl'ock the parts,fthe shank 15b is swungf'on its pivot lcfto vclear thefrontof thel keeper l 12a 'and the boltY 14a shot artherinto the keeper as' will: be understood from -a Icom'- 'parisonof Figs. 5y and; 6; Thus,lth'e locking `member A15a is finally brought -to registering position'with the keepers 17a so that gholes 18a, 19'a -ther'einmay receive "aj padlock, the

saine as -in the first described construction,

In the forms shown in Figs'. 5 to 8,-the same spring 22a`is employed corresponding with the springv 22-andsecured "as vat 232L fat a depression '24a in the'casing 10a'. -A pro- V'adapted-to'engage in'either'fo'ne of three notches instead of in two vas inf the first instance;l Thus, as best seen in F ig. 7 there are notches-26a, 26b`to receive the protuberance 25a for holding Ithe latch in'either of the positionsfindicated in Fig.l 45 or Fig. `6, and in 'addition there is -a notch 27a Vcorrespondinglwith thej notch 27f for 'holding the latch bolt 14a"inthe'retractedf'position and 'prevent its jaccidental outward mo'ifement.`

Vilev would state in conclusion fthatjwhile the Vvillustrated examples constitute practical Copier of this patentmay `be olitainedfor The latch bolt 14 secured to the door jamb inXed position to receive said latch bolt, spacedflocking -ears in fixed position onrv said keeper and a lock-`V ing ear on said'latch bolt, casing'and saidkeeper havlng'registermg slots accom modating the locking ear of thelatch bolt i in sliding movements of the latter, and the respective ears being adapted Yto vbebrought` to register forwreceivinga padlock; 2. A latchof the class described` including a casing,'alatch bolt'slidable therein,a

keeper adapted to be secured to thejdoor casingtoreceive the latch bolt, -`1Xed locking ears on the keepenanda'ixedlocking -ear on the latch bolt ladapted to beaccommodated between the first mentioned' ears and in register therewith.' when the latch bolt is engaged with the keeper, wherebyfa padlockmay be engaged with` the respective locking ears.

3. A latch of described including a casing adapted tobe'secured to the.Y

door, a latch bolt sli'dable` therein, ia .keeper adapted to be secured in -iXed position'on the door casing, to receive the latch'bolt, a fixed locking memberon said keeper, and a'swingi able locking member on saidlatch bolt,*said swingable member land the latchL being movable relativly to the keeper 5to bring the -swingabley member into register Vwith the fixed locking 'membercfithe keeper whereby said members jointly may receive arpadlock.

ALBERT MAUEEE. l E

ve cents each, by addressing `the ,Commissionef of Patents,

' Washington, D. G.

` FREDERICK J, voniriENrz'ELk 

